Lubricator for pump or piston rods.



No. 6mm. Patented Nov. 6, I900. J. MCBRIDE.

LUBRICATOR FOR PUMP 0B PISTON RODS.

(Application filed Mar. 12, 1900.)

(Mo Modal.)

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lJTTh STATES A-Tn T much.

JOHN MCBRIDE, OF MCKEES ROCKS, PENNSYLVANIA.

LUBRICATOR FOR PUMP OR PISTON RODS.

SPECIFICATION forming part of Letters Patent No. 661,317, dated November6, 1900.

A ficafic fil d March 12,1900. Serial No. 8,304. (No model.)

To u/M [L /b01771 zit may concern:

Be it known that I, JOHN MCBRIDE, acitizen of the United States ofAmerica, residing at McKees Rocks, in the county of Allegheny and Stateof Pennsylvania, have invented certain new and useful Improvements inLubricators for Air-Brake and other Pumps or Piston Rods, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

This invention relates to certain new and useful improvements inlubricating devices adapted for use upon piston-rods of air-brakecylinders and pumps of all descriptions.

One object of the invention is to construct a lubricating device whichis adapted to be arranged upon a piston-rod in such a manner as tolubricate the same and to further engage the fastening-nuts for thegland to prevent their turning, thereby preventing the gland frombecoming loosened during the operation of the piston rod; furthermore,in providing a suitable lubricating-supply for keeping the devicesaturated at all times with a lubricant.

A further object of the invention is to construct a lubricating devicewhich will be extremely simple in construction, strong, durable,efficient in its use, and comparatively inexpensive to manufacture.

Briefly described, the invention consists of bending a suitable piece ofWire in a manner to form a pair of circular-shaped claspingyokes andcovering the same with a suitable fibrous packing, forming a concentriclubricating device,whicl1 is adapted to be saturated with a suitablelubricating material when the device is in position upon a piston-rod. Ialso provide a suitable lubricating-supply for keeping the devicesaturated with a lubricant at all times.

With the above and other objects in view the invention finally consistsin the novel construction, combination, and arrangement of parts to behereinafter more fully described, and specifically pointed out in theclaims.

In describing the invention in detail reference is had to theaccompanying drawings, forming a part of this specification, and whereinlike numerals of reference indicate corresponding parts throughout theseveral views, in which Figure 1 is a side elevation showing my improvedlubricating device in position upon a piston-rod and engaging thesecuring-nuts of the gland. Fig. 2 is a cross-sectional view taken onthe line 2 2 of Fig. 1. Fig.3 is a vertical sectional view of thelubricating device. Fig. i isa perspective view of the pair of springclasping-yokes.

Referring to the drawings by reference-numerals, 1 indicates the glandupon the bolts 2 and secured in position by means of nuts 3.

4 indicates a lubricating-supply supported in any manner desired, and 5denotes the piston-rod.

The reference-numerals 6 7 denote a pair of circular-shaped springclasping-yokes formed by bending a suitable piece of wire in the mannershown, the top of each yoke bent at an angle, as at 8 9, formingprojections in order to permit of the gripping of the same when it isdesired to remove the lubricating device. The spring clasping-yokes 6 7are entirely covered by asuitable fibrous packing 10, which is adaptedto be saturated with a lubricating material and placed in position upona piston-rod and, further, adapted to engage the fastening-nuts of thegland to prevent their turning, thereby overcoming any accidentalloosening of the gland. The material of which the fibrous packing iscomposed is made up in an oblong form, so as to cause the same to followany irregularities in the diameter of the piston-rod and preserve aclosecontact with the surface of the same, so that the lubricating materialwill engage the piston-rod at all times. The fibrous packing is of suchthickness that when the device is mounted upon a piston-rod, as shown inFig. 2, the action of the spring-yokes will cause the device to alwaysbe in engagement with the securing-nuts of the gland to prevent theirturning and to further have the same at all times in engagement with thepiston-rod. Of course it will be evident that the packing will belubricated at all times by the supply 4E.

It is thought that the many advantages of my improved lubricating devicecan be readily understood from the foregoing description, taken in'connection With the accompanying drawings, and it will be noted thatvarious changes may be made in the details of construction Withoutdeparting from the general spirit of my invention.

Having thus fully described my invention, What I claim as new, anddesire to secure by Letters Patent, is-

1. A lubricating device comprising in its construction a pair ofsubstantially circularshaped spring clasping-yokes, and a fibrouspacking entirely covering the said yokes.

2. A lubricating device consisting of a suitable piece of spring-Wirebent to form a

